Spindles & Bearings

Aeagle LT50 Spindle Assembly for 618-06981 918-06981 Fit for Cub Cadet 50 Inch Deck XT1-LT50 XT2-LX50 Troy-Bilt Super Bronco XP 50 TB2350 MTD CYT5023SE T260 (3 Pack)

4.3/5 (76 reviews)
$63.99
Aeagle LT50 Spindle Assembly for 618-06981 918-06981 Fit for Cub Cadet 50 Inch Deck XT1-LT50 XT2-LX50 Troy-Bilt Super Bronco XP 50 TB2350 MTD CYT5023SE T260 (3 Pack)
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What It Is

This is a 3-pack of replacement spindle assemblies designed for 50-inch cutting decks on select Cub Cadet, Troy-Bilt, and MTD lawn tractors. The spindle houses the blade pulley and bearings that spin the mower blade; you need this when the stock unit wears out, gets noisy, or seizes.

Fitment & Compatibility

  • Deck size: Only fits 50-inch decks. Measure your deck width (blade tip to blade tip) to confirm.
  • OEM cross-reference: Replaces OEM part numbers 618-06981 and 918-06981. Check your mower’s parts diagram for these numbers.
  • Direct fit models: Cub Cadet XT1-LT50, XT2-LX50; Troy-Bilt Super Bronco XP 50, TB2350; MTD CYT5023SE, T260. Also fits many other MTD-built 50-inch decks.
  • Measure before buying: Remove a spindle and verify shaft diameter (typically 1 inch), bolt pattern (3-bolt flange), and overall height. Aeagle’s aftermarket spec matches OEM, but always confirm.
  • Note: This is an aftermarket part, not OEM Cub Cadet. Quality is generally good, but some users report slightly tighter bearing tolerances.

Key Things to Know

  • Installation difficulty: Moderate. Requires removing the deck, unbolting the old spindle (3 bolts), and transferring the pulley and blade adapter. Basic hand tools and a jack or blocks help.
  • Quality: Bearings are sealed and greased from factory. Most buyers report smooth operation, but a few note premature wear if deck is heavily used on rough terrain.
  • Gotcha: The pulley nut is reverse-thread on some models—check before forcing. Also, the blade adapter can be rusted on; use penetrating oil.
  • Warranty: Aeagle typically offers a 1-year warranty. Keep your receipt.

Should You Buy It

If you have a 50-inch Cub Cadet, Troy-Bilt, or MTD tractor and need to replace all three spindles at once, this 3-pack saves money over buying OEM individually. It’s a solid aftermarket option for DIY owners comfortable with basic deck work, but if you want exact OEM fit with zero tolerance risk, stick with genuine Cub Cadet spindles.

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